Category: 104-76-7

Gu, Zixuan; Jiang, Haiyang; Zha, Fengchao; Manthey, Frank; Rao, Jiajia; Chen, Bingcan published the artcile< Toward a comprehensive understanding of ultracentrifugal milling on the physicochemical properties and aromatic profile of yellow pea flour>, Recommanded Product: 2-Ethylhexan-1-ol, the main research area is Pisum Starch damage Aromatic profile Untargeted metabolomics; Aromatic profile; Plant-based ingredients; Starch damage; Untargeted metabolomic approaches; Yellow pea.

Yellow pea (Pisum sativum L., YP) grain is generally milled into flour for further processing or direct consumption. However, the comprehensive relationship between milling configurations and YP flour properties remains unclear. The aim of this study is to investigate the effect of configurations (screen aperture size and rotor speed) of ultracentrifugal mill on the physicochem. properties and aromatic profiles of YP flours. Starch damage, morphol., particle size distribution, pasting, thermal property, and aromatic profiles of YP flours were studied. Results show that starch damage increased significantly as the screen aperture size decreased. The YP flour produced with a 500 μm aperture screen had the most stable pasting and thermal properties. With untargeted metabolomic approaches, 2-ethyl-1-hexanol could potentially be applied as an aroma maker to distinguish if an excessive milling or inappropriate configurations of ultracentrifugal mill are applied. This work has furnished fundamentals for the milling and application of YP flour.

Food Chemistry published new progress about Flours and Meals. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Recommanded Product: 2-Ethylhexan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Soszka, N.; Hachula, B.; Tarnacka, M.; Kaminska, E.; Pawlus, S.; Kaminski, K.; Paluch, M. published the artcile< Is a Dissociation Process Underlying the Molecular Origin of the Debye Process in Monohydroxy Alcohols?>, SDS of cas: 104-76-7, the main research area is glass former monohydroxy alc Debye relaxation hydrogen bond dissociation; activation barrier broad band dielec spectroscopy FTIR.

Herein, we investigated the mol. dynamics as well as intramol. interactions in two primary monohydroxy alcs. (MA), 2-ethyl-1-hexanol (2EHOH) and n-butanol (nBOH), by means of broad-band dielec. (BDS) and Fourier transform IR (FTIR) spectroscopy. The modeling data obtained from dielec. studies within the Rubinstein approach [Macromols. 2013, 46, 7525-7541] originally developed to describe the dynamical properties of self-assembling macromols. allowed us to calculate the energy barrier (Ea) of dissociation from the temperature dependences of relaxation times of Debye and structural processes. We found Ea ~19.4 ± 0.8 and 5.3 ± 0.4 kJ/mol for the former and latter systems, resp. On the other hand, FTIR data analyzed within the van’t Hoff relationship yielded the energy barriers for dissociation Ea ~20.3 ± 2.1 and 12.4 ± 1.6 kJ/mol for 2EHOH and nBOH, resp. Hence, there was almost a perfect agreement between the values of Ea estimated from dielec. and FTIR studies for the 2EHOH, while some notable discrepancy was noted for the second alc. A quite significant difference in the activation barrier of dissociation indicates that there are probably supramol. clusters of varying geometry or a ring-chain-like equilibrium is strongly affected in both alcs. Nevertheless, our anal. showed that the association/dissociation processes undergoing within nanoassocs. are one of the main factors underlying the mol. origin of the Debye process, supporting the transient chain model.

Journal of Physical Chemistry B published new progress about Activation energy. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, SDS of cas: 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Syed-Ab-Rahman, Sharifah Farhana; Carvalhais, Lilia C.; Chua, Elvis T.; Chung, Fong Yi; Moyle, Peter M.; Eltanahy, Eladl G.; Schenk, Peer M. published the artcile< Soil bacterial diffusible and volatile organic compounds inhibit Phytophthora capsici and promote plant growth>, Category: alcohols-buliding-blocks, the main research area is soil bacteria volatile antioomycete biocontrol Phytophthora plant growth; Anti-oomycete; Biocontrol; Phytophthora capsici; SPME-GC–MS; Soil bacteria; Volatile.

Biotic interactions through diffusible and volatile organic compounds (VOCs) are frequent in nature. Soil bacteria are well-known producers of a wide range of volatile compounds (both organic and inorganic) with various biol. relevant activities. Since the last decade, they have been identified as natural biocontrol agents. Volatiles are airborne chems., which when released by bacteria, can trigger plant responses such as defense and growth promotion. In this study, we tested whether diffusible and volatile organic compounds (VOCs) produced by soil bacterial isolates exert anti-oomycete and plant growth-promoting effects. We also investigated the effects of inoculation with VOC-producing bacteria on the growth and development of Capsicum annuum and Arabidopsis thaliana seedlings. Our results demonstrate that organic VOCs emitted by bacterial antagonists neg. influence mycelial growth of the soil-borne phytopathogenic oomycete Phytophthora capsici by 35% in vitro. The bacteria showed plant growth promoting effects by stimulating biomass production, primary root growth and root hair development. Addnl., we provide evidence to suggest that these activities were deployed by the emission of either diffusible organic compounds or VOCs. Bacterial VOC profiles were obtained through solid phase microextraction (SPME) and anal. by gas chromatog. coupled with mass spectrometry (GC-MS). This elucidated the main volatiles emitted by the isolates, which covered a wide range of aldehydes, alcs., esters, carboxylic acids, and ketones. Collectively, twenty-five VOCs were identified to be produced by three bacteria; some being species-specific. Our data show that bacterial volatiles inhibits P. capsici in vitro and modulate both plant growth promotion and root system development. These results confirm the significance of soil bacteria and highlights that ways of harnessing them to improve plant growth, and as a biocontrol agent for soil-borne oomycetes through their volatile emissions deserve further investigation.

Science of the Total Environment published new progress about Acinetobacter. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ashikhmin, Alexander; Piskunov, Maxim; Yanovsky, Vyacheslav; Yan, Wei-Mon published the artcile< Properties and Phase Behavior of Water-in-Diesel Microemulsion Fuels Stabilized by Nonionic Surfactants in Combination with Aliphatic Alcohol>, Synthetic Route of 104-76-7, the main research area is property phase water diesel microemulsion fuel stabilization micellar; nonionic surfactant aliphatic alc emulsifier.

We study the properties and phase behavior of the H2O-diesel fuel-Neonol AF 9-6/2-ethylhexanol system, which is regarded as a promising microemulsion fuel. A pseudoternary diagram of the system has been obtained. In the diesel fuel/H2O (DF/W) ratio ranging from 98:2-50:50 and the emulsifier concentration of 8-40 volume%, a region of microemulsions has been distinguished, generating particular interest as an alternative fuel. In the region under study, a reverse micellar phase L2 has existed predominantly. Fish-cut diagrams have been obtained for the DF/W ratios in the emulsifier concentration-temperature coordinates. An increase in the H2O fraction in microemulsions significantly has narrowed the range of their stability. The critical changes of microemulsion properties have been identified using the fish-cut diagrams. We established the empirical relation among the phase inversion temperature, the emulsifier concentration in the phase inversion point, and the H2O fraction in microemulsions.

Energy & Fuels published new progress about Aliphatic alcohols Role: MOA (Modifier or Additive Use), USES (Uses). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Synthetic Route of 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Razavi, Seyed Mohammad; Haghtalab, Ali; Khanchi, Ali Reza published the artcile< Optimization of vanadium(V) extraction by 2-ethyl-1-hexanol and the study of extraction reaction mechanism>, Electric Literature of 104-76-7, the main research area is vanadium extraction reaction mechanism thermodn property.

The aims of the present work are to investigate the mechanism and thermodn. of pentavalent vanadium (V(V)) extraction by 2-ethyl-1-hexanol and to optimize the extraction process. The stoichiometry of V(V) extraction reaction and the extraction equilibrium constants at different temperatures were determined using the slope anal. method applied to the exptl. data. It was shown that the extracted V(V) was in the form of HVO3(ROH) in the organic phase. The standard enthalpy and the standard entropy of extraction reaction were calculated as 39.56 kJ/mol and 54.38 J/(mol.K), resp. A statistical exptl. design method, including Plackett-Burman design (PBD) followed by a central composite design (CCD), was employed to obtain the regression models for the prediction of extraction percentages and to optimize the recovery of V(V) from a synthetic leach solution containing Fe(III), U(VI), Si(IV), and Al(III). The accuracy of the predictive models was proven by the anal. of variance (ANOVA). The optimum condition for selective separation of V(V) was: initial pH of 1.9, extractant concentration of 70%volume/volume, and T=59.3°C. Under the optimum condition, the extraction percentages for V(V), Fe(III), U(VI), Si(IV), and Al(III) were 91.3%, 1.7%, 6.3%, 10.6%, 2.7%, resp. Developed models were validated by solvent extraction experiments at optimum conditions.

Minerals Engineering published new progress about Enthalpy. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Electric Literature of 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Razavi, Seyed Mohammad; Haghtalab, Ali; Khanchi, Ali Reza published the artcile< Optimization of vanadium(V) extraction by 2-ethyl-1-hexanol and the study of extraction reaction mechanism>, Electric Literature of 104-76-7, the main research area is vanadium extraction reaction mechanism thermodn property.

The aims of the present work are to investigate the mechanism and thermodn. of pentavalent vanadium (V(V)) extraction by 2-ethyl-1-hexanol and to optimize the extraction process. The stoichiometry of V(V) extraction reaction and the extraction equilibrium constants at different temperatures were determined using the slope anal. method applied to the exptl. data. It was shown that the extracted V(V) was in the form of HVO3(ROH) in the organic phase. The standard enthalpy and the standard entropy of extraction reaction were calculated as 39.56 kJ/mol and 54.38 J/(mol.K), resp. A statistical exptl. design method, including Plackett-Burman design (PBD) followed by a central composite design (CCD), was employed to obtain the regression models for the prediction of extraction percentages and to optimize the recovery of V(V) from a synthetic leach solution containing Fe(III), U(VI), Si(IV), and Al(III). The accuracy of the predictive models was proven by the anal. of variance (ANOVA). The optimum condition for selective separation of V(V) was: initial pH of 1.9, extractant concentration of 70%volume/volume, and T=59.3°C. Under the optimum condition, the extraction percentages for V(V), Fe(III), U(VI), Si(IV), and Al(III) were 91.3%, 1.7%, 6.3%, 10.6%, 2.7%, resp. Developed models were validated by solvent extraction experiments at optimum conditions.

Minerals Engineering published new progress about Enthalpy. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Electric Literature of 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Marques, Joao Paulo Cordeiro; Rios, Italo Castro; Arruda, Tathilene Bezerra Mota Gomes; Rodrigues, Francisco Eduardo Arruda; Uchoa, Antonia Flavia Justino; Tavares de Luna, Francisco Murilo; Cavalcante, Celio Loureiro; Ricardo, Nagila Maria Pontes Silva published the artcile< Potential Bio-Based Lubricants Synthesized from Highly Unsaturated Soybean Fatty Acids: Physicochemical Properties and Thermal Degradation>, SDS of cas: 104-76-7, the main research area is lubricant soybean fatty acid.

The use of mineral lubricants and petroleum derivatives has become, along the years, harmful to the environment, so renewable raw materials have gained expressive notoriety. The innovation of this study is to understand how the highly unsaturated content from soybean oil influences the physicochem. properties and the thermal behavior of synthesized biolubricant base stocks. The process used was carried out in three steps: esterification with 2-ethylhexanol, epoxidation, and oxirane ring opening with 2-ethylhexanol. The modifications were monitored by 1H NMR, the main physicochem. properties were measured, and the thermogravimetric behaviors of products were evaluated. The synthesized samples had high viscosity indexes (VI > 120) and viscosities that fit in application grade ISO-32. The samples using highly unsaturated fatty acids had a better pour point (-12 °C). The raw material composition directly influenced the physicochem. properties but did not affect the thermogravimetric behavior.

Industrial & Engineering Chemistry Research published new progress about Epoxidation. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, SDS of cas: 104-76-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Feng, Zhihui; Li, Yifan; Li, Ming; Wang, Yijun; Zhang, Liang; Wan, Xiaochun; Yang, Xiaogen published the artcile< Tea aroma formation from six model manufacturing processes>, Category: alcohols-buliding-blocks, the main research area is tea aroma formation processing; Aroma character impact; Precursors; Quantitative SPME; Tea aroma; Tea processing; Tea types; Volatiles.

Tea aroma is determined by the nature of the plant, the production processes, and many other factors influencing its formation and release. The objective of this study was to investigate the impact of manufacturing processes on the aroma composition of tea. Fresh tea leaves from the same cultivar and growing area were selected for producing the six types of tea: green, white, yellow, oolong, black, and dark teas. Comprehensive anal. by gas chromatog. mass spectrometry (GC/MS) was performed for the volatiles of tea infusion, prepared by solid-phase microextraction (SPME), solid-phase extraction (SPE), and solvent assisted flavor evaporation (SAFE). A total of 168 volatile compounds were identified. Black tea has the highest volatile concentration of 710 μg/g, while green tea has the lowest concentration of 20 μg/g. Significantly affected by these processes, tea aroma mols. are formed mainly from four precursor groups: carotenoids, fatty acids, glycosides, and amino acids/sugars.

Food Chemistry published new progress about Odor and Odorous substances. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Celante, Dian; Diehl, Lisiane O.; Brondani, Leoni N.; Bizzi, Cezar A.; de Castilhos, Fernanda published the artcile< Measurement and Correlation of the Solubility of Terephthalic Acid in Six Pure Solvents and Five Binary Mixtures>, COA of Formula: C8H18O, the main research area is terephthalic acid solubility ethylhexanol DMSO methylpyrrolidinone DMF dimethylacetamide pyridine.

The goal of this work was to measure the solubility of terephthalic acid (TA) in six pure solvents (2-ethyl-1-hexanol (2EH), DMSO, 1-methyl-2-pyrrolidinone, N,N-dimethylformamide, N,N-dimethylacetamide, and pyridine) and five binary mixtures (composed of 2EH and 5 or 10% weight/weight another solvent) from 313.15 to 363.15 K at atm. pressure 101.3 kPa. Experiments were performed by an isothermal method employing an in situ filter to sample only the homogeneous liquid phase, and samples were analyzed by liquid chromatog. Solubility of TA in 2EH is 100-fold lower when compared to the other studied solvents, but a binary mixture composed of 2EH and 5 or 10% weight/weight (solute-free basis) DMSO could increase solubility up to 61 and 165%, resp. Furthermore, the parameters of λh, Apelblat, Wilson, and NRTL models were estimated All of the models fitted the exptl. data with good agreement, but the nonrandom two-liquid (NRTL) model was the most suitable to represent exptl. data.

Journal of Chemical & Engineering Data published new progress about Solubility. 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, COA of Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Mendoza-Pedroza, Jose de Jesus; Sanchez-Ramirez, Eduardo; Segovia-Hernandez, Juan Gabriel; Hernandez, Salvador; Orjuela, Alvaro published the artcile< Recovery of alcohol industry wastes: Revaluation of fusel oil through intensified processes>, Name: 2-Ethylhexan-1-ol, the main research area is alc industry waste fusel oil recovery.

Fusel oil is a mixture obtained as a side cut during ethanol distillation, mainly composed of i-amyl alc., water, ethanol, isobutanol, and other alcs. Currently, fusel separation into the constitutive alcs. is accomplished by batch or continuous distillation involving different columns in an energy-intensive process. Moreover, fusel oil presents a particular thermodn. behavior projected in several azeotropes, making the purification of fusel oil a challenging process. In this work is proposed a novel distillation scheme to purify isoamyl alc. from other fusel alcs. by using a dividing wall column scheme. In order to determine the benefits of using such intensified technol., a comparison with the conventional scheme was carried out. In order to accurately represent the thermodn. equilibrium, data for phase equilibrium was needed to the correctly design of the purification process. Both, the traditional distillation scheme and the dividing wall column were modeled using Aspen Plus and optimized by using a hybrid stochastic algorithm. Results indicate that the dividing wall column is not only more efficient in term of energy intensity (2785 kJ/kg Amyl alc.) against (3497 kJ/Kg Amyl alc.) the conventional scheme, but also it offers large economic savings compared with the conventional scheme (27% savings).

Chemical Engineering and Processing published new progress about Alcohols Role: IMF (Industrial Manufacture), PREP (Preparation). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Name: 2-Ethylhexan-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts